Apparatus for hermetically closing preserve glasses



Aug. 31 1926. v

T. LANGKQFF APPARATUS FOR EERMETICALLY CLOSING PRESERVE GLASSES Filed Sept. 4,, 1923 Fatented Au 31, 1926.

UNITED srarns THEODOR LA'NGKOPF, 0F UNTEBTUR KHEIFI, GERMANY.

APPARATUS non nnRMETicALLY CLOSING PRESERVE GLAssEs.

Application filed. September 192? Serial No. 660,904.

This invention relates to an apparatus comprising a pumping device and a device for hermetically closing in a few moments preserve glasses of any construction uniformly and securely. 1

In the drawings a form of construction of the inventionis shown by way of example.

Fig. 1 is a side elevation of the apparatus.

Fig. '2 is a plan view of'the same.

Fig. 3 is a longitudinal section showing the closer in operation.

Fig. a shows insection the pumping device with the pump piston in the position at the right hand end.

Fig. 5 is a similar view with the pump piston in the left hand position. I

The apparatus for hermetically closing preserve glasses consists essentially of two main parts, the closing device and the double acting pump. The apparatus serves for the preserving of vegetables, fruit or the like without heat in withdrawing from the receptacle a, the lid of which is closed, the

air with the aid of a double acting pump 1 piston 7 so that after the lid h is removed the preserve glass G, which has been closed by the outer air, may be removed at once. The receptacle a which may be fixed by means of clamps b on a table plate T or the like has an upper edge 0 which is bent over in outward direction to form a bead and it has further two vertical supports d with indentations c, said supports being arranged at opposite sides of the receptacle. The indentations serve to receive cylindrical journals g at the ends of a crank shaft f which is thus securely guided. The crank shaft 7 is further connected with the lid h, said lid being adapted to move elastically in inward and outward direction, by means of collars v1 placed around the eccentric part of shaft f at convenient distances apart in connection with the lid h by means of rivets 7a or the like. The rotating movements of shaft f are produced with the aid of a crank handle Z. In a central cavity m of the lid h a packing 4?, of leather or any convenient material is embedded which has an air hole 0. The eccentric part of shaft 7 is cut out at 7) so that when the handle Z stands upright the hole 0 of the packing is free so that the atmospheric air can flow into the receptacle a. In the lower part of the receptacle a a double-acting pump is arranged which works silent and free from shocks. This pump serves to prevent that during the production of" the vacuum the air in the receptacle be stoppedas'sh'ocks or stopping of the air at the production of the vacuum would have an undesirable action on the preserved fruit. In the receptacle a a transverse pump cylinder 2 is mounted which has a nut 3 at one end in which the piston rod 4 is guided through the intermediary of packings 5 and of a stufler 6. At the end of the piston rod leather disks 7 are removably mounted'by means of a screw 8. On a sheet metal plate 9 arranged above the pump cylinder 2 the preserve glass G (Figs. 4: and 5) is mounted. The double-acting pump 'is closed by ball valves which are independent of one another. At the rig-ht and left of the receptacle a curved tubes 10, 11 respectively connect said receptacle with the pump cylinder 2 through the intermediary of a tubular socket 12, 13 respectively serving as valve casings. In the tubular sockets 12, 13 balls 14, 15 are enclosed which serve as valves and the stroke of which is limited by studs 16, 17 The rear end of the pump cylinder 2 is formed by a locking nut 18 which, by means of an outward directed tubular socket 19 and of a cross pin 21, imprisons a ball 20 acting as a valve. Upon the opposite end of the pump cylinder a tubular socket 22 is arranged in which a ball 23 with pin 24 is. enclosed.

The operation of the apparatus is as follows :The glass G which contains the fruits or the like is placed upon the sheet metal plate 9 in the receptacle a, the lid of the preserve glass being in place, whereupon the lid 72, is placed on the receptacle 4; the end parts of the shaft f being inserted into the indentations e of the supports (Z. By lowering the hand lever Z the shaft 7 is turned and the crank of said shaft produces an air tight closing of the receptacle as the circumference of shaft f covers air-tightly the air hole 0. If the piston of the pump is operated for about twenty times the balls 14 and 20 are pushed outward when the piston advances (Fig. 5) and the balls 15 and 22 are drawn in inward direction towards the studs 17 and 24k whilst at the return stroke of the piston the balls are moved in inverse direction. In this manner a sucking action is produced in the receptacle 0; which remains constant during the pumping and avoids any sudden movement of the air.

If the lever Z is turned up into the position shown in Fig. 1 in dotted lines the compression of the rubber lining h with regard to the annular head 0 issIightly loosened and the airhole ois uncovered by the cut out part 0 of the shaft so that the outer air can flow into the receptacle (1,

whereby the lid of the preserving glass G in the parts projecting over the rim of said receptacle, a lid for said receptacle having acentral air hole,-a crank shaft on saidreceptacle the ends or". which engage with v said incisions, means for rotating said crank shaft so that its crank 7 simultaneously presses upon the lid and closes the airhole, anair pump in the lower part ofthe recep tacle, curvedsuction pipes connecting the ends of the pump cylinder; With the interior of the receptacle, and ball' valves in said i curved'pipes. .7

, 2, Apparatus fon fhermetically closing preserve glasses comprising in combination a receptacle designed to receive the preserve glass, two vertical supports at opposite sides oi said receptacle having incisions in the parts projectin tacle', .a lid for said receptacle having a central air hole, a rubber packing ring surrounding said central air hole, a crank shaft on said'receptacle the ends of which engage WilQli SQiCl incisions, crank Shaft, so that its crank simultaneously presses upon the lid and closes the air hole said crank'having atra sverse slot, an air pump in the loiver'part of tlie receptacle,

'izurved' suction" pipes connectingtheends oi tl e-puinpj cylinder ith-the interior oftl e 'i'ec'eptacle, and ball valves in said curved pipes, said crank shaft rotatedby the'said means uncovering at-a determined position by its said transverse slot theair hole so so that air is admitted into the receptacle. 1, In testiinonyr vhereof I a fix iny signacure.v

l ITHEODGR'LA G PF- f g over'the rim of said recepmeans for rotating said 3- 

